JPH0191403A - Manufacture of oxide superconducting coil - Google Patents
Manufacture of oxide superconducting coilInfo
- Publication number
- JPH0191403A JPH0191403A JP24923287A JP24923287A JPH0191403A JP H0191403 A JPH0191403 A JP H0191403A JP 24923287 A JP24923287 A JP 24923287A JP 24923287 A JP24923287 A JP 24923287A JP H0191403 A JPH0191403 A JP H0191403A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- coil
- molded body
- oxide superconducting
- composite sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000002131 composite material Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 238000010304 firing Methods 0.000 claims description 18
- 239000002887 superconductor Substances 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 238000007606 doctor blade method Methods 0.000 claims description 2
- 150000002823 nitrates Chemical class 0.000 claims description 2
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 21
- 230000009975 flexible effect Effects 0.000 abstract description 5
- 238000005245 sintering Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- FBSAITBEAPNWJG-UHFFFAOYSA-N dimethyl phthalate Natural products CC(=O)OC1=CC=CC=C1OC(C)=O FBSAITBEAPNWJG-UHFFFAOYSA-N 0.000 description 1
- 229960001826 dimethylphthalate Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- Y02E40/642—
Landscapes
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
Ｃ１γ業上の利用分野〕
この発明は、高い臨界温度を持つ酸化物超電導コイルの
製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of C1γ Industrial Application] This invention relates to a method for manufacturing an oxide superconducting coil having a high critical temperature.
最近、核融合、磁気浮−Ｆ列１ｔ、核磁気共１＠装置、
電磁石及び物性研究分野において、運転コストの低い、
強い繊物を作る超電導コイルが望まれている。１９８７
年になって、非常に高い臨界温度を持った酸化物超電導
体が発見され、液体窒素温度（７７°ｋ）でも超電導性
を示すようになフた。Recently, nuclear fusion, magnetic floating-F column 1t, nuclear magnetic co-1@ device,
In the fields of electromagnet and physical property research, low operating costs,
A superconducting coil that makes strong fibers is desired. 1987
In 2010, oxide superconductors with extremely high critical temperatures were discovered, and they began to show superconductivity even at liquid nitrogen temperatures (77°K).
この超電導体は、たとえば、Ｙ−Ｂａ−Ｃｕ−０で代表
される組成の酸化物であるが、脆弱なセラミックであり
、コイル化は非常に困難である。This superconductor is, for example, an oxide with a composition represented by Y-Ba-Cu-0, but it is a brittle ceramic and is extremely difficult to coil.
現在知られているコイル化する方法としては、次のもの
かある。これは、まず、金属バイブ（シース材）の中に
酸化物超電導体となる混合粉末を封入し、これを金属線
材を製作するように引抜き加丁、スェージング加工、圧
延加工等をｈｌずことによって線状に成形し、ついで、
これをコイル状に巻き取り、しかる後、熱処理を行うと
いう方法である。Currently known coiling methods include the following. This is done by first enclosing a mixed powder that will become an oxide superconductor in a metal vibrator (sheath material), and then subjecting it to drawing, swaging, rolling, etc., just like making a metal wire. Form it into a linear shape, then
The method involves winding this into a coil and then subjecting it to heat treatment.
ところが、このような方法で酸化物超電導コイルを製作
する場合には、シース材の材質の選択に問題があった。However, when manufacturing an oxide superconducting coil using such a method, there is a problem in selecting the material for the sheath material.
たとえばシース材にＣｕを使うと、熱処理中に、酸化物
超電導体より酸素が除去され、酸素不足の現象を生じ、
特性の優れた超電導体が得られない。これに対処するた
めには、酸素透過性があり、封入した混合粉末より酸素
を除去しないＡｇのような金属を使用すればよいが、こ
れでは高価につき実用に供し得ない。For example, when Cu is used as a sheath material, oxygen is removed from the oxide superconductor during heat treatment, causing an oxygen deficiency phenomenon.
A superconductor with excellent properties cannot be obtained. To deal with this, a metal such as Ag, which is permeable to oxygen and does not remove oxygen from the encapsulated mixed powder, may be used, but this is too expensive to be used practically.
この発明は、このような問題点を解決するためになされ
たもので、酸化物超電導体の特性を悪化させるシース材
や高価なシース材を使うことなしに、酸化物超電導体を
比較的容易にコイル化でき、したがって優わた電気、磁
気特性を有するとともに、機械的強度と絶縁性にも優れ
た酸化物超電導コイルを得ることができる同コイルの製
造方法を提供することを目的としている。This invention was made to solve these problems, and allows oxide superconductors to be produced relatively easily without using sheath materials that deteriorate the properties of oxide superconductors or expensive sheath materials. The object of the present invention is to provide a method for producing an oxide superconducting coil that can be formed into a coil and therefore has excellent electrical and magnetic properties as well as excellent mechanical strength and insulation properties.
この発明に係る酸化物超電導コイルの製造方法は、焼成
によって酸化物超電導体を生成するように配合された酸
化物、硝酸塩及び炭酸塩のうち、いずれか一種以上の粉
末またはすでに超電導性を有する酸化物粉末と樹脂バイ
ンダー、可塑剤及び溶剤とより成るスラリーから第１の
シート状成形体を形成する工程と、絶縁性を示すセラミ
ック粉末と樹脂バインダー、可塑剤及び溶剤とより成る
スラリーから第２のシート状成形体を形成する工程と、
第１．第２の両シート状成形体を積層して複合シー］・
状成形体を形成し、これを巻き取って巻き取り複合シー
ト状成形体を４９る工程と、この巻き取り複合シート状
成形体を幅狭くスリットして幅の狭いコイル部を有する
巻き取り複合シート状成形体とする工程と、このコイル
部をＩＹする巻き取り複合シート状成形体を焼成する工
程と存するものである。The method for producing an oxide superconducting coil according to the present invention includes a powder of any one or more of oxides, nitrates, and carbonates blended to produce an oxide superconductor by firing, or an oxide that already has superconductivity. forming a first sheet-shaped molded body from a slurry consisting of a ceramic powder, a resin binder, a plasticizer, and a solvent; a step of forming a sheet-like molded body;
1st. Composite sheet by laminating both second sheet-like molded bodies]・
A process of forming a composite sheet-like molded product and winding it up to form a composite sheet-like molded product, and slitting the rolled-up composite sheet-like molded product into a narrow width to form a rolled-up composite sheet having a narrow coil portion. There are two steps: a step of forming a shaped body, and a step of rolling up the coil portion and firing the composite sheet shaped body.
（作用）
この発明によれば、焼成面の可撓性のある複合シート状
成形体を巻き取った状態で幅狭くスリットし、そのまま
焼成するので脆い酸化物超電導体を比較的容易にコイル
化できる。したがって、シース材の使用を必要としない
。(Function) According to the present invention, a composite sheet-like molded body with a flexible firing surface is rolled up and then narrowly slit and fired as it is, making it possible to coil a brittle oxide superconductor relatively easily. . Therefore, the use of a sheath material is not required.
また、シース材を使用しないので、焼成にあたフて最適
の焼成温度と焼成雰囲気（酸素雰囲気）を選択すること
によって優れた電気、磁気特性を有する酸化物超電導コ
イルを得ることができる。Furthermore, since no sheath material is used, an oxide superconducting coil with excellent electrical and magnetic properties can be obtained by selecting the optimum firing temperature and firing atmosphere (oxygen atmosphere) during firing.
さらに、酸化物超電導体層となる第１のシート状成形体
を絶縁体層となる第２のシート状成形体でバックアップ
するので、コイルとしての機械的強度の向」ニを図れる
とともに、コイル化した超電導体層の層間絶縁を図るこ
とができる。Furthermore, since the first sheet-shaped molded body, which will become the oxide superconductor layer, is backed up with the second sheet-shaped molded body, which will become the insulating layer, it is possible to improve the mechanical strength of the coil, and to form a coil. Interlayer insulation of the superconductor layers can be achieved.
以下、この発明の実施例を第１〜３図によって説明する
。Embodiments of the present invention will be described below with reference to FIGS. 1 to 3.
第１図は実施例によって得られる酸化物超電導コイルの
うちの基本コイルを示す図で、１は、巻き芯Ｓに所定の
巻き数だけ巻いたコイル部、２と３はそれぞれ？Ｔｔ棒
端子部である。第２図は実施例における第１．第２の両
シート状成形体のドクターブレード法による製造工程を
示す模式図である。第３図は実施例における複合シート
状成形体の製造工程を示す模式図である。FIG. 1 is a diagram showing a basic coil among the oxide superconducting coils obtained in the example, where 1 is a coil portion wound with a predetermined number of turns around a winding core S, and 2 and 3 are respectively ? This is a Tt rod terminal part. FIG. 2 shows the first example in the embodiment. It is a schematic diagram which shows the manufacturing process by the doctor blade method of the 2nd sheet-like molded object. FIG. 3 is a schematic diagram showing the manufacturing process of a composite sheet-like molded body in an example.
まず、組成比がＹＢａ２Ｃｕ３になるように配分したＢ
ａＣＯ３，Ｙ２０３ 、ＣｕＯの炭酸塩及び酸化物の原
料粉末に、バインダーとしてポリビニル・ブチラール、
可塑剤としてジメチル・フタレート及び溶剤としてトル
エン・エタノール混合溶剤を加え、ボールミルにて均一
に混合してスラリーを作成した。ついで、このスラリー
４を、第２図に示すように、成形用フィルム５上に流し
、これをドクターブレード６により１２０ｍｍ幅で０．
２［１１１１１厚の第１のシート状成形体（超電導シー
ト）８を成形し、乾燥炉７に通して乾燥し、巻きＪ収り
リールに巻き取った。９はその巻取りシートである。こ
れとは別に、同様の方法でアルミナ粉末を使用したスラ
リーを作成し、同寸法の第２のシート状成形体（Ｍ！ｊ
シート）１０を成形して乾燥し、巻き取った。First, B was distributed so that the composition ratio was YBa2Cu3.
aCO3, Y203, CuO carbonate and oxide raw material powder, polyvinyl butyral as a binder,
Dimethyl phthalate as a plasticizer and a toluene/ethanol mixed solvent as a solvent were added and mixed uniformly in a ball mill to create a slurry. Next, as shown in FIG. 2, this slurry 4 is poured onto a forming film 5, and a doctor blade 6 is used to spread the slurry 4 to a width of 120 mm.
A first sheet-like molded body (superconducting sheet) 8 having a thickness of 2[11111 mm] was molded, dried in a drying oven 7, and wound onto a reel with a winding capacity of J. 9 is the winding sheet. Separately, a slurry using alumina powder was created using the same method, and a second sheet-like molded body of the same size (M!j
Sheet) 10 was formed, dried, and rolled up.
引きつづき両シート８，１０を、第３図に示すように、
表面温度１２０℃、ニップ圧２００Ｋｇ／ｃｒｒ＋”の
ラミネートロール１１に通してれ１層し、一体化した。Subsequently, as shown in FIG. 3, both sheets 8 and 10 are
It was passed through a laminating roll 11 with a surface temperature of 120°C and a nip pressure of 200 kg/crr+'' to form one layer and integrate it.
得られた複合シート状成形体１２をアルミナ型巻き芯Ｓ
に絶縁シート１０側を内側にして５０回巻き取フた。そ
して、この巻き取り複合シート状成形体１３を、第１図
に示すように、幅２ｍｍにスリットしてコイル部１を切
り出した。The obtained composite sheet-like molded product 12 is wrapped in an alumina type core S.
Then, the insulating sheet 10 was rolled up 50 times with the 10 side facing inside. The rolled composite sheet-like molded product 13 was then slit to a width of 2 mm to cut out the coil portion 1, as shown in FIG.
その際、一方の電極端子部３は巻き芯Ｓに接続状態で残
した。ついで、これを焼成炉に入れ、酸素雰囲気のもと
１，０００℃で１５時間焼成して酸化物超電導コイル（
基本コイル）を作成した。At that time, one electrode terminal portion 3 was left connected to the winding core S. Next, this was placed in a firing furnace and fired at 1,000°C for 15 hours in an oxygen atmosphere to form an oxide superconducting coil (
Basic coil) was created.
このコイルを液体窒素温度まで冷やして、その臨界電流
を測定したところ、１，１００Ａ／ｃｍ’の臨界電流密
度か得られた。この値は、従来の金属パイプ延伸法によ
るコイルと比較すると充分高い値であった。When this coil was cooled to liquid nitrogen temperature and its critical current was measured, a critical current density of 1,100 A/cm' was obtained. This value was sufficiently high compared to the coil produced by the conventional metal pipe drawing method.
このように、この実施例では、焼成１１在のバインダー
を含有た可撓性のある複合シート状成形体１３を、コイ
ル状に巻き取フてから幅狭くスリットし、そのままの状
態で焼成するので、脆くてコイル化し難い酸化物超電導
体を比較的容易にコイル化でき、したがって、従来使用
しているシース材を使用しなくてよい。As described above, in this embodiment, the flexible composite sheet-like molded body 13 containing the binder in the firing 11 is wound into a coil shape, then narrowly slit, and fired in that state. The oxide superconductor, which is brittle and difficult to coil, can be coiled relatively easily, thus eliminating the need for the conventional sheath material.
また、シース材を使用する必要がないので、焼成に際し
てシース材の影響を考慮なしくて済み、最適の焼成温度
と焼成雰囲気（酸素雰囲気）を選択することができる。Further, since there is no need to use a sheath material, there is no need to consider the influence of the sheath material during firing, and the optimal firing temperature and firing atmosphere (oxygen atmosphere) can be selected.
このため、前述したように、優れた電気、磁気特性を有
する酸化物超電導コイルを得ることができる。Therefore, as described above, an oxide superconducting coil having excellent electrical and magnetic properties can be obtained.
さらに、第２のシート状成形体１０は、第１のシート状
成形体８と積層されてコイル状に巻き取られるので、焼
成後においては、コイルの機械的強度の向上に寄与する
だけでなく、コイル化した酸化物Ｂｌ電導体層の層間絶
縁体として機能する。Furthermore, since the second sheet-shaped molded body 10 is laminated with the first sheet-shaped molded body 8 and wound into a coil shape, after firing it not only contributes to improving the mechanical strength of the coil but also , which acts as an interlayer insulator for the coiled oxide Bl conductor layer.
第４図は、この発明による製造方法によって得られる酸
化物超電導コイルの他の例を示したものである。このコ
イルは３個のコイル部１５゜１６及び１７をシリーズに
接続部１８と１９で接続して連結コイルとした例である
。１８゜１９は、それぞれコイル部１５．１６及びコイ
ル部１６と１７の挫続部であり、２０．２１は電極端子
部である。FIG. 4 shows another example of an oxide superconducting coil obtained by the manufacturing method according to the present invention. This coil is an example in which three coil parts 15, 16 and 17 are connected in series at connecting parts 18 and 19 to form a connected coil. Reference numerals 18 and 19 are the coil portions 15 and 16 and the unfastened portions of the coil portions 16 and 17, respectively, and 20 and 21 are the electrode terminal portions.
この連結コイルの製法は、次のとおりである。The method for manufacturing this connected coil is as follows.
複合シート状成形体１２を巻き芯Ｓに絶縁シート１０側
を内側にして巻き芯Ｓに巻き取り、３個のコイル１５．
１６及び１７ができるようにスリットする。この際、コ
イル部１５と１６及び１６と１７は完全に切り踵してお
く。ついで、コイル部１５と１６の接続をコイル部１５
の巻き始めの端部とコイル部１６の巻き終りの端部を接
続部１８で合わせ、シート用バインダーの溶剤で接着面
を湯溜にしてから圧着して貼り合わせる。この際、超電
導シート８面を互いに貼り合わせるために、コイル部１
６の巻き終りの端部の絶縁シートｌＯは除去する。コイ
ル部１６と１７についても同様に接続する。このあとは
、第１図の基本コイルの場合と同様に焼成すれば、連結
コイルを４４−する酸化物Ｍ１“「導コイルがｔＩらね
る。The composite sheet-like molded body 12 is wound around the winding core S with the insulating sheet 10 side facing inside, and three coils 15.
Make slits so that numbers 16 and 17 are formed. At this time, the coil parts 15 and 16 and 16 and 17 are completely cut off. Next, the coil parts 15 and 16 are connected to each other.
The winding start end of the coil part 16 and the winding end end of the coil part 16 are brought together at the connecting part 18, and the adhesive surfaces are made into a pool with the solvent of the sheet binder, and then they are crimped and bonded together. At this time, in order to bond the eight surfaces of the superconducting sheets to each other, the coil portion 1
The insulating sheet 10 at the end of the winding No. 6 is removed. The coil parts 16 and 17 are also connected in the same way. After this, by firing in the same manner as in the case of the basic coil shown in FIG. 1, a conductive coil is formed using the oxide M1 which forms the connecting coil.
このように、コイル部をシリーズに多数個連結すれば、
巻数の増加した酸化物超電導コイルの製作が可能となる
。In this way, if many coil parts are connected in series,
It becomes possible to manufacture oxide superconducting coils with an increased number of turns.
なお、実施例では、酸化物超電導体の組成分としてＹ−
Ｂａ−Ｃｕ−０系の酸化物を使用したが、それ以外の酸
化物、たとえば、Ｌａ−Ｂａ−Ｃｕ−０系、Ｌａ−５ｒ
−Ｃｕ−ｏＬ。In addition, in the examples, Y-
Although Ba-Cu-0 type oxide was used, other oxides such as La-Ba-Cu-0 type, La-5r
-Cu-oL.
Ｙｂ−Ｂａ−Ｃｕ−０系、 ５ｅ−Ｂａ−Ｃｕ−０系等
の酸化物でも同様の効果がｊｉｔられる。また、複合シ
ート状成形体を作成するときの絶縁シートに関しては、
アルミナ製のもの以外ても、絶縁性を有し、超電導体の
機域的特性を補強し、かつ超電導体との反応笠によりそ
の特性を劣化させないものであればよい。Similar effects can be achieved with oxides such as Yb-Ba-Cu-0 and 5e-Ba-Cu-0. Regarding the insulating sheet when creating a composite sheet-like molded product,
Materials other than those made of alumina may be used as long as they have insulating properties, reinforce the mechanical characteristics of the superconductor, and do not deteriorate the characteristics due to reaction with the superconductor.
以上のように、この発明によれば、酸化物超電導体層と
なる第１のシート状成形体と絶縁体層とな′る第２のシ
ート状成形体とを、それらがバインダーを含有して可撓
性を有する状態のときに、４１１層してコイル状に巻き
取り、これを幅狭くスリットとしてから焼成するので、
酸化物超電導体の特性を悪化させるシース材や高価なシ
ース材を使用しなくても、コイル化の難しい酸化物超電
導体を比較的容易にコイル化できる。As described above, according to the present invention, the first sheet-like molded body serving as the oxide superconductor layer and the second sheet-like molded body serving as the insulating layer are formed so that they contain a binder. When it is in a flexible state, 411 layers are wound up into a coil shape, which is made into narrow slits and then fired.
An oxide superconductor, which is difficult to coil, can be coiled relatively easily without using a sheath material that deteriorates the properties of the oxide superconductor or an expensive sheath material.
また、シース材を使用しないので、焼成時のシース材の
影響を考慮しなくてよい。このため、最適の焼成温度と
雰囲気での焼成が可能になり、優れた電気、６ｆｉ気特
性の酸化物超電導コイルを得ることかできる。Furthermore, since no sheath material is used, there is no need to consider the influence of the sheath material during firing. Therefore, it is possible to perform firing at the optimum firing temperature and atmosphere, and it is possible to obtain an oxide superconducting coil with excellent electrical and 6fi characteristics.
さらに、第２のシート状成形体が第１のシート状成形体
に積層されるので、機械的強度と絶縁性に優れた酸化物
超電導コイルを得ることができる。Furthermore, since the second sheet-shaped molded body is laminated on the first sheet-shaped molded body, it is possible to obtain an oxide superconducting coil with excellent mechanical strength and insulation properties.
【図面の簡単な説明】
第１図はこの発明の実施例によって１）ｔられる基本コ
イルの斜視図、第２図は実施例における第１．第２の両
シート状成形体の製造］二枚を示す図、第３図は実施例
における複合シート状成形体の製造工程を示す図、第４
図は他の実施例によって１１Ｊられる酸化物超電導コイ
ルの斜視図である。
１はコイル部、２．３は電極端子部、４はスラリー、５
は成形用フィルム、６はドクターブレード、７は乾燥炉
、８は第１のシート状成形体（超電導シート）、１０は
第２のシート状成形体（絶縁シート）、１１はラミネー
トロール、１２は複合シート状成形体、１３は巻き取り
複合シート成形体である。
なお、図中、同一符号は、同一または相当部分を示す。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a basic coil according to an embodiment of the present invention, and FIG. 2 is a perspective view of a basic coil according to an embodiment. [Manufacture of the second sheet-like molded body] FIG. 3 is a diagram showing the manufacturing process of the composite sheet-like molded body in the example.
The figure is a perspective view of a 11J oxide superconducting coil according to another embodiment. 1 is a coil part, 2.3 is an electrode terminal part, 4 is a slurry, 5
1 is a forming film, 6 is a doctor blade, 7 is a drying oven, 8 is a first sheet-shaped molded product (superconducting sheet), 10 is a second sheet-shaped molded product (insulating sheet), 11 is a laminating roll, 12 is a The composite sheet-shaped molded product 13 is a rolled-up composite sheet molded product. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (3)
合された酸化物、硝酸塩及び炭酸塩のうち、いずれか一
種以上の粉末またはすでに超電導性を有する酸化物粉末
と樹脂バインダー、可塑剤及び溶剤とより成るスラリー
から第１のシート状成形体を形成する工程と、絶縁性を
示すセラミック粉末と樹脂バインダー、可塑剤及び溶剤
とより成るスラリーから第２のシート状成形体を形成す
る工程と、第１，第２の両シート状成形体を積層して複
合シート状成形体を形成し、これを巻き取って巻き取り
複合シート状成形体を得る工程と、この巻き取り複合シ
ート状成形体を幅狭くスリットして幅の狭いコイル部を
有する巻き取り複合シート状成形体とする工程と、この
コイル部を有する巻き取り複合シート状成形体を焼成す
る工程とより成る酸化物超電導コイルの製造方法。(1) A powder of any one or more of oxides, nitrates, and carbonates blended to produce an oxide superconductor by firing, or an oxide powder that already has superconductivity, a resin binder, a plasticizer, and a solvent. A step of forming a first sheet-like molded body from a slurry consisting of a slurry consisting of a ceramic powder exhibiting insulating properties, a resin binder, a plasticizer, and a solvent, and a step of forming a second sheet-like molded body from a slurry of a step of laminating both the first and second sheet-like molded bodies to form a composite sheet-like molded body, and winding this up to obtain a composite sheet-like molded body; A method for manufacturing an oxide superconducting coil comprising the steps of: forming a rolled composite sheet-like molded body having a narrow coil portion by narrowly slitting it; and firing the rolled composite sheet-like molded body having the coil portion. .
以上のコイル部を設け、これらをシリーズに接続して２
個以上のコイル部を有する巻き取り複合シート状成形体
とする特許請求の範囲第１項に記載の酸化物超電導コイ
ルの製造方法。(2) Slit the rolled composite sheet-like molded product to provide two or more coil parts, and connect these in series to create two coil parts.
The method for manufacturing an oxide superconducting coil according to claim 1, wherein the rolled-up composite sheet-like molded product has at least two coil parts.
ドクターブレード法で形成する特許請求の範囲１１第１
項または第２項に記載の酸化物超電導コイルの製造方法
。(3) The first sheet-like molded body and the second sheet-like molded body are formed by a doctor blade method.
A method for manufacturing an oxide superconducting coil according to item 1 or 2.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24923287A JPH0191403A (en) | 1987-10-02 | 1987-10-02 | Manufacture of oxide superconducting coil |
| DE3853444T DE3853444D1 (en) | 1987-05-15 | 1988-05-11 | Process for the production of a superconducting oxide. |
| EP88107555A EP0291034B1 (en) | 1987-05-15 | 1988-05-11 | Method for producing oxide superconductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24923287A JPH0191403A (en) | 1987-10-02 | 1987-10-02 | Manufacture of oxide superconducting coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0191403A true JPH0191403A (en) | 1989-04-11 |
Family
ID=17189889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24923287A Pending JPH0191403A (en) | 1987-05-15 | 1987-10-02 | Manufacture of oxide superconducting coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0191403A (en) |
-
1987
- 1987-10-02 JP JP24923287A patent/JPH0191403A/en active Pending
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